Key decoder tool for use by locksmiths in determining the tumbler coding of locks



FIG. 1 is a perspective view of a key decoder tool for use by locksmithsdetermining the tumbler coding of locks showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The ornamental design for a key decoder tool for use by locksmiths indetermining the tumbler coding of locks, as shown.